How long does a saguaro cactus live?
Ethan Hayes
Updated on April 02, 2026
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Keeping this in view, what is the oldest saguaro cactus?
Old Granddaddy was about 300 years old when the saguaro cactus started to die in the 1990s. Old Granddaddy is the oldest known cactus ever in the world. Not only was Old Granddaddy old, it was a giant at over 40 feet tall and had 52 arms just before it died.
how can you tell how old a saguaro cactus is? It can take 10 years for a saguaro cactus to reach 1 inch in height. By 70 years of age, a saguaro cactus can reach 6 and a half feet tall, and will finally start to produce their first flowers. By 95-100 years in age, a saguaro cactus can reach a height of 15-16 feet, and could start to produce its first arm.
Hereof, how long can a saguaro cactus live?
150 - 175 years
Why do saguaro cactus only grow in Arizona?
The saguaro cactus can only be found in the Sonoran Desert. Saguaros grow very slowly. Low temperatures and frost can kill a saguaro, so they are not usually found above 4,000 feet. Saguaros have pleats that allow them to expand when they drink water (like an accordion) and contract as they use up their water supply.
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